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Finding the Fourth Proportional to 16.01, 23.99 and 12.96

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Solution

The fourth proportional to 16.01, 23.99 and 12.96 is: 19.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.01 : 23.99 = 12.96 : x
  2. Step 2: Convert to fraction form
    16.01/23.99 = 12.96/x
  3. Step 3: Cross multiply
    16.01x = 23.99 × 12.96
  4. Step 4: Simplify right side
    16.01x = 310.85
  5. Step 5: Solve for x
    x = 310.85/16.01
  6. Step 6: Final answer
    x = 19.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.